The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The worst 2019 Freightliner M2 Business Class problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 3
Electrical system
- What is wrong
- Daimler Trucks North America, LLC (DTNA) is recalling certain 2019 Freightliner eBusiness Class M2 vehicles equipped with 14Xe ePowertrains. The stator assembly wires may have been insufficiently crimped, causing high resistance, overheating, and preventing the high voltage system from starting.
- Risk
- A loss of power to the system may cause a loss of drive power, increasing the risk of a crash.
- Remedy
- Dealers will replace the motor stator, free of charge. All units were remedied by July 13, 2021. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL-889.
Recall number 21V392000 · Recall details
Service brakes, air: disc
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain 2019 Freightliner 108SD, 114SD, Business Class M2, Cascadia, Western Star 5700, and FCCC XC Chassis vehicles equipped with air disc brakes. The brake caliper mounting bolts may have been insufficiently tightened.
- Risk
- Loose brake caliper mounting bolts may reduce the brake effectiveness, increasing the risk of crash.
- Remedy
- DTNA will notify the owners and affected vehicle manufacturers, and DTNA dealers will inspect and repair the vehicles, free of charge. The recall is expected to begin July 12, 2019. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL-816.
Recall number 19V367000 · Recall details
Service brakes, air: supply: reservoir/tank
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain 2004-2019 Freightliner 108SD, 114SD, 122SD, Cascadia, Columbia, Classic, FL80, FLD 120SD, Business Class M2, Western Star 4700, 4900, 6900, Sterling Acterra, L7500, LT7500, L8500, LT8500, L9500, and LT9500 vehicles. The vehicles may have an insufficient service brake air reservoir capacity. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
- Risk
- An insufficient air reservoir volume may reduce brake effectiveness, increasing the risk of crash.
- Remedy
- DTNA will notify owners, and dealers will add air reservoir capacity to the affected vehicles. Owner letters were mailed on November 29, 2021. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL-815.
Recall number 19V370000 · Recall details
See all 3 recalls for the 2019 Freightliner M2 Business Class
Technical service bulletins for the 2019 Freightliner M2 Business Class 39
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Tech Talk discussion on losing TPS signal.
- Warranty Information Letter sent to customers regarding new refrigerator supplier for returning parts.
- Receiver/Dryer Bracket and CAC Plumbing Interference
- Receiver/Dryer Bracket and CAC Plumbing Interference Field Service Campaign
- Forward Chassis Wiring Harness
- D19M3 GHG17
- Field Service Campaign D19M2 GHG17 Detroit? DD5? Fan Hub Bolt Torque Inspection
- Customer Advisory letter
- Important Warranty Information to Freightliner and Western Star dealers on Transporter Photo Requirement...
- Operating Hours for the Customer Assistance Center
See all 39 bulletins for the 2019 Freightliner M2 Business Class
What 2019 Freightliner M2 Business Class owners say
Most recent owner complaints, unedited.
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
DEF header failure. This is an emissions issue and it disables the truck when it fails.
Compare the 2019 Freightliner M2 Business Class
Other model years
20182019
Questions about the 2019 Freightliner M2 Business Class
Is the 2019 Freightliner M2 Business Class reliable?
Owners have filed 8 complaints about the 2019 Freightliner M2 Business Class, close to a typical M2 Business Class model year.
What is the most common problem with the 2019 Freightliner M2 Business Class?
There are not enough complaints to tell.
How many recalls does the 2019 Freightliner M2 Business Class have?
3 recalls, covering electrical system and service brakes, air.
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